LM2595S-3.3

LM2595S-3.3

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LM2595S-3.3
SWITCHING REG, VOLTAGE-MODE, 2.6
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Available in stock: 3471
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National Semiconductor

National Semiconductor

Texas Instruments Incorporated (TI), a worldwide purveyor of semiconductor schematics and fabrications, specializes in the conception of analog integrated circuits (ICs) and intrinsic processors. Mobilizing the preeminent intellectual luminaries across the globe, TI engineers revolutions that sculpt the destiny of technology. Enabling over 100,000 patrons to transmute tomorrow's promise into today's reality, TI stands as a vanguard of transformative innovation.

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LM2595S-3.3 Products

The LM2595S-3.3 series of regulators are monolithic integrated circuits that provide all the active functions for a step-down (buck) switching regulator, capable of driving a 1-A load with excellent line and load regulation. These devices are available in fixed output voltages of 3.3 V, 5 V, 12 V, and an adjustable output version.

Requiring a minimum number of external components, these regulators are simple to use and include internal frequency compensation, and a fixed-frequency oscillator.

The LM2595S-3.3 series operates at a switching frequency of 150 kHz, thus allowing smaller-sized filter components than what would be needed with lower-frequency switching regulators. Available in a standard 5-pin TO-220 package with several different lead bend options, and a 5-pin TO-263 surface-mount package. Typically, for output voltages less than 12 V, and ambient temperatures less than 50°C, no heat sink is required.

A standard series of inductors are available from several different manufacturers optimized for use with the LM2595S-3.3 series. This feature greatly simplifies the design of switch-mode power supplies.

Other features include a ±4% tolerance on output voltage under specified input voltage and output load conditions, and ±15% on the oscillator frequency. External shutdown is included, featuring typically 85-μA stand-by current. Self protection features include a two stage frequency reducing current limit for the output switch and an overtemperature shutdown for complete protection under fault conditions.

Feature

  • 3.3-V, 5-V, 12-V, and Adjustable Output Versions
  • Adjustable Version Output Voltage Range, 1.2 V to 37 V ±4% Maximum Over Line and Load Conditions
  • Available in TO-220 and TO-263 Surface-Mount Packages
  • Ensured 1-A Output Load Current
  • Input Voltage Range Up to 40 V
  • Requires Only 4 External Components
  • Excellent Line and Load Regulation Specifications
  • 150-kHz Fixed-Frequency Internal Oscillator
  • TTL Shutdown Capability
  • Low Power Standby Mode, IQ, Typically 85 μA
  • High Efficiency
  • Uses Readily Available Standard Inductors
  • Thermal Shutdown and Current-Limit Protection

Product Attributes

TYPE DESCRIPTION Select all
Series SIMPLE SWITCHER®
Package Bulk
Product Status Active
Function Step-Down
Output Configuration Positive
Topology Buck
Output Type Fixed
Number of Outputs 1
Voltage - Input (Min) 4.5V
Voltage - Input (Max) 40V
Voltage - Output (Min/Fixed) 3.3V
Current - Output 1A
Frequency - Switching 150kHz
Synchronous Rectifier No
Operating Temperature -40°C ~ 125°C (TJ)
Mounting Type Surface Mount
Package / Case TO-263-6, D²Pak (5 Leads + Tab), TO-263BA
Supplier Device Package DDPAK/TO-263-5

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$0.58

Price update:a months ago
Available in stock: 3471
National Semiconductor

National Semiconductor

Texas Instruments Incorporated (TI), a worldwide purveyor of semiconductor schematics and fabrications, specializes in the conception of analog integrated circuits (ICs) and intrinsic processors. Mobilizing the preeminent intellectual luminaries across the globe, TI engineers revolutions that sculpt the destiny of technology. Enabling over 100,000 patrons to transmute tomorrow's promise into today's reality, TI stands as a vanguard of transformative innovation.

View All Product from National Semiconductor

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